altair.Point#

class altair.Point(coordinates=Undefined, type=Undefined, bbox=Undefined, **kwds)#

Point schema wrapper.

Point geometry object. https://tools.ietf.org/html/rfc7946#section-3.1.2

Parameters:
coordinatesSequence[float], Position

A Position is an array of coordinates. https://tools.ietf.org/html/rfc7946#section-3.1.1 Array should contain between two and three elements. The previous GeoJSON specification allowed more elements (e.g., which could be used to represent M values), but the current specification only allows X, Y, and (optionally) Z to be defined.

Note: the type will not be narrowed down to [number, number] | [number, number, number] due to marginal benefits and the large impact of breaking change.

See previous discussions on the type narrowing:

One can use a {@link https://www.typescriptlang.org/docs/handbook/2/narrowing.html#using-type-predicates user-defined type guard that returns a type predicate } to determine if a position is a 2D or 3D position.

typeLiteral[‘Point’]

Specifies the type of GeoJSON object.

bboxBBox, Sequence[float]

Bounding box of the coordinate range of the object’s Geometries, Features, or Feature Collections. The value of the bbox member is an array of length 2*n where n is the number of dimensions represented in the contained geometries, with all axes of the most southwesterly point followed by all axes of the more northeasterly point. The axes order of a bbox follows the axes order of geometries. https://tools.ietf.org/html/rfc7946#section-5

__init__(coordinates=Undefined, type=Undefined, bbox=Undefined, **kwds)#

Methods

__init__([coordinates, type, bbox])

copy([deep, ignore])

Return a copy of the object.

from_dict(dct[, validate])

Construct class from a dictionary representation.

from_json(json_string[, validate])

Instantiate the object from a valid JSON string.

resolve_references([schema])

Resolve references in the context of this object's schema or root schema.

to_dict([validate, ignore, context])

Return a dictionary representation of the object.

to_json([validate, indent, sort_keys, ...])

Emit the JSON representation for this object as a string.

validate(instance[, schema])

Validate the instance against the class schema in the context of the rootschema.

validate_property(name, value[, schema])

Validate a property against property schema in the context of the rootschema.
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